Been told I work too fast

I recently made a big salary jump and left the MSP field after starting my IT career in it over 10 years ago.

For reference - I had to log every minute of my day and had to be over 75% billable in a week at most MSPs, almost sweat shop stuff. In order to get those numbers, you work fast, efficient, and had to plan out your day by sprinting and other forms of planning.

Had my weekly 1 on 1 with my director this week and they mentioned that although I work incredibly fast, efficient, and a wealth of knowledge - they would like me to slow down and have other people be part of the process.

Definitely going to ask my coworker to be part of my work if they want, but has anyone else encountered this before? I am all ears on tips and suggestions so I can be a better coworker.

It's been a huge shift moving from a decade of pure MSP to internal and want to be the best coworker /team player I can to them